diff --git a/src/api/oa/erp/erpProjectChange/index.ts b/src/api/oa/erp/erpProjectChange/index.ts
index 66becb0..3d81ebb 100644
--- a/src/api/oa/erp/erpProjectChange/index.ts
+++ b/src/api/oa/erp/erpProjectChange/index.ts
@@ -108,3 +108,14 @@ export const queryProjectChangeByProjectPlanId = (projectPlanId: string | number
     method: 'get'
   });
 };
+
+/**
+ * 查询指定项目的所有历史变更记录
+ * @param projectId
+ */
+export const getProjectChangeHistory = (projectId: string | number): AxiosPromise<ErpProjectChangeVO[]> => {
+  return request({
+    url: '/oa/erp/erpProjectChange/queryHistoryByProjectId/' + projectId,
+    method: 'get'
+  });
+};
diff --git a/src/views/oa/erp/erpProjectChange/edit.vue b/src/views/oa/erp/erpProjectChange/edit.vue
index a537948..3f6364c 100644
--- a/src/views/oa/erp/erpProjectChange/edit.vue
+++ b/src/views/oa/erp/erpProjectChange/edit.vue
@@ -550,7 +550,6 @@ const loadFormData = async () => {
           Object.assign(form.value, res.data);
           const dateOnly = toDateOnly(form.value.applyChangeDate);
           form.value.applyChangeDate = dateOnly ?? formatToday();
-          // 与 handleProjectChange/loadProjectDataByProjectId 保持一致，将 BigDecimal 字符串转为 Number 以避免 el-input-number 渲染崩溃
           form.value.budgetList = (res.data.budgetList ?? []).map((item: any) => ({
             ...item,
             budgetBefore: Number(item.budgetBefore || 0),
diff --git a/src/views/oa/erp/erpProjectChange/index.vue b/src/views/oa/erp/erpProjectChange/index.vue
index fbed037..39c4860 100644
--- a/src/views/oa/erp/erpProjectChange/index.vue
+++ b/src/views/oa/erp/erpProjectChange/index.vue
@@ -177,6 +177,10 @@
             <el-tooltip v-if="scope.row.projectChangeStatus === '2' || scope.row.projectChangeStatus === '3'" content="审批记录" placement="top">
               <el-button link type="info" icon="DocumentCopy" @click="handleApprovalRecord(scope.row)"></el-button>
             </el-tooltip>
+            <!-- 历史变更记录按钮 -->
+            <el-tooltip content="查看历史变更记录" placement="top">
+              <el-button link type="warning" icon="Clock" @click="handleViewHistory(scope.row)"></el-button>
+            </el-tooltip>
             <!-- 删除按钮：草稿、驳回或撤回状态显示 -->
             <el-tooltip
               v-if="scope.row.projectChangeStatus === '1' || scope.row.flowStatus === 'back' || scope.row.flowStatus === 'cancel'"
@@ -199,11 +203,34 @@
     </el-card>
     <!-- 审批记录 -->
     <ApprovalRecord ref="approvalRecordRef" />
+
+    <!-- 项目变更历史记录抽屉 -->
+    <el-drawer v-model="historyDrawer.visible" :title="historyDrawer.title" size="700px">
+      <el-timeline v-if="historyDrawer.list && historyDrawer.list.length > 0">
+        <el-timeline-item
+          v-for="(item, index) in historyDrawer.list"
+          :key="index"
+          :timestamp="`第 ${item.changeNumber} 次变更 (${parseTime(item.createTime, '{y}-{m}-{d} {h}:{i}')} 申请人: ${item.createName || '未知'})`"
+          placement="top"
+          type="primary"
+          size="large"
+        >
+          <el-card shadow="hover">
+            <div v-for="(msg, mIndex) in item.messages" :key="mIndex" style="margin-bottom: 15px; font-size: 14px; line-height: 1.5;">
+              <el-tag :type="msg.type === '预算变更' ? 'success' : 'warning'" size="small" style="margin-right: 10px;" effect="dark">{{ msg.type }}</el-tag>
+              <span style="color: #606266;">{{ msg.desc }}</span>
+            </div>
+            <div v-if="item.messages.length === 0" style="color: #909399; font-size: 13px;">本次变更未修改预算金额与进度计划。</div>
+          </el-card>
+        </el-timeline-item>
+      </el-timeline>
+      <el-empty v-else description="暂无历史变更记录数据" />
+    </el-drawer>
   </div>
 </template>
 
 <script setup name="ErpProjectChange" lang="ts">
-import { delErpProjectChange, listErpProjectChange } from '@/api/oa/erp/erpProjectChange';
+import { delErpProjectChange, listErpProjectChange, getProjectChangeHistory } from '@/api/oa/erp/erpProjectChange';
 import { ErpProjectChangeQuery, ErpProjectChangeVO } from '@/api/oa/erp/erpProjectChange/types';
 import { useRoute, useRouter } from 'vue-router';
 import { onActivated } from 'vue';
@@ -215,8 +242,8 @@ const router = useRouter();
 const { proxy } = getCurrentInstance() as ComponentInternalInstance;
 const approvalRecordRef = ref<InstanceType<typeof ApprovalRecord>>();
 const refreshFlagKey = 'erpProjectChangeListShouldRefresh';
-const { active_flag, change_type, project_change_status, project_category, wf_business_status } = toRefs<any>(
-  proxy?.useDict('active_flag', 'change_type', 'project_change_status', 'project_category', 'wf_business_status')
+const { active_flag, change_type, project_change_status, project_category, wf_business_status, project_phases } = toRefs<any>(
+  proxy?.useDict('active_flag', 'change_type', 'project_change_status', 'project_category', 'wf_business_status', 'project_phases')
 );
 
 // 项目变更列表数据（表格数据源）
@@ -395,6 +422,126 @@ const handleApprovalRecord = (row: ErpProjectChangeVO) => {
   approvalRecordRef.value?.init(row.projectChangeId);
 };
 
+// ================ 历史变更记录查看相关 ================
+const historyDrawer = reactive({
+  visible: false,
+  title: '',
+  list: [] as any[]
+});
+
+const handleViewHistory = async (row: any) => {
+  historyDrawer.title = `每一次变更的历史记录（${row.projectName}）`;
+  historyDrawer.visible = true;
+  historyDrawer.list = [];
+
+  try {
+    proxy?.$modal.loading('正在提取变更历史记录...');
+    const res = await getProjectChangeHistory(row.projectId);
+    if (res.data) {
+      const records = res.data;
+      const historyList = [];
+      
+      const previousBudget: Record<string, number> = {};
+      const previousProgressContent: Record<string, any> = {};
+
+      for (let i = 0; i < records.length; i++) {
+        const item = records[i];
+        const messages: any[] = [];
+
+        // 1. 预算变更详情提取
+        if (item.budgetList && item.budgetList.length > 0) {
+          item.budgetList.forEach((budget: any) => {
+            const after = Number(budget.budgetAfter || 0);
+            const prev = previousBudget[budget.subjectName];
+            // 第一次变更的变更前预算直接取本次自身的数据
+            const before = prev !== undefined ? prev : Number(budget.budgetBefore || 0);
+
+            if (before !== after) {
+              messages.push({
+                type: '预算变更',
+                desc: `将预算变更中的【${budget.subjectName}】从变更前预算的 ${before.toFixed(2)} 变为变更后预算的 ${after.toFixed(2)}`
+              });
+            }
+            // 记录该科目本次变更的最后状态，供下一次比对
+            previousBudget[budget.subjectName] = after;
+          });
+        }
+
+        // 2. 进度变更详情提取
+        if (item.progressList && item.progressList.length > 0) {
+          item.progressList.forEach((progress: any) => {
+            const phaseKey = progress.projectPhases;
+            const prev = previousProgressContent[phaseKey] || {
+              start: progress.originalStart,
+              end: progress.originalEnd,
+              milestone: ''
+            };
+
+            const diffs = [];
+            let startChanged = false;
+            let endChanged = false;
+
+            // 对比开始时间
+            if (prev.start && progress.changedStart && prev.start !== progress.changedStart) {
+              diffs.push(`原计划时间起的 ${proxy?.parseTime(prev.start, '{y}-{m}-{d}')} 变为变更后时间起的 ${proxy?.parseTime(progress.changedStart, '{y}-{m}-{d}')}`);
+              startChanged = true;
+            }
+            // 对比结束时间
+            if (prev.end && progress.changedEnd && prev.end !== progress.changedEnd) {
+              diffs.push(`原计划时间止的 ${proxy?.parseTime(prev.end, '{y}-{m}-{d}')} 变为变更后时间止的 ${proxy?.parseTime(progress.changedEnd, '{y}-{m}-{d}')}`);
+              endChanged = true;
+            }
+            // 里程碑变动情况
+            let msDiff = '';
+            // 判断是否是该阶段首次填入或与上一次填写的里程碑名不一致
+            if (progress.milestoneName && prev.milestone !== progress.milestoneName) {
+              const oldName = prev.milestone ? `“${prev.milestone}”` : '空白';
+              msDiff = `里程碑名称从原来的${oldName}变为“${progress.milestoneName}”`;
+            }
+
+            if (diffs.length > 0 || msDiff) {
+              const phaseLabel = proxy?.selectDictLabel(project_phases.value, progress.projectPhases) || progress.projectPhases || '未知';
+              const diffStr = diffs.join('，');
+              let finalDescText = diffStr;
+              
+              if (finalDescText && msDiff) {
+                finalDescText += `，同时将${msDiff}`;
+              } else if (msDiff) {
+                finalDescText = `将${msDiff}`;
+              }
+              
+              messages.push({
+                type: '进度变更',
+                desc: `将进度变更中【${phaseLabel}】阶段的 ` + finalDescText
+              });
+            }
+
+            // 更新本次阶段的最终状态供后续比较，如果没有更改则继承上次的值（如果在本次记录中这些字段为空的话）
+            previousProgressContent[phaseKey] = {
+              start: startChanged ? progress.changedStart : prev.start,
+              end: endChanged ? progress.changedEnd : prev.end,
+              milestone: progress.milestoneName
+            };
+          });
+        }
+        
+        historyList.push({
+          changeNumber: item.changeNumber,
+          createTime: item.createTime,
+          createName: item.createName || item.projectManagerName,
+          messages: messages
+        });
+      }
+      historyDrawer.list = historyList;
+    }
+  } catch (error) {
+    console.error("加载变更历史记录失败", error);
+  } finally {
+    proxy?.$modal.closeLoading();
+  }
+};
+// ========================================================
+
 /** 删除按钮操作 */
 const handleDelete = async (row?: ErpProjectChangeVO) => {
   const _projectChangeIds = row?.projectChangeId || ids.value;